Description Usage Arguments Value Note
Subset from big.data.table
1 2 3 4 5 |
x |
big.data.table object. |
new.var |
character scalar, name of new variable where query results should be cached. |
new.copy |
logical if *TRUE* it will make deep copy while saving to *new.var*. |
parallel |
logical if parallel *TRUE* (default) it will send expression to nodes using 'wait=FALSE' and collect results afterward executing each node in parallel. |
outer.aggregate |
logical or a function, if *TRUE* will able the same query to rbind of results from each node, should not be used with '.SD', '.N', etc. Also conflicts with filtering in 'i'. Can be also a function taking first argument 'x' rbinded data.table. |
.log |
logical if *TRUE* then logging will be done using logR to postgres db. |
... |
arguments passed to each node '[.data.table' call: *i, j, by, keyby...*. |
data.table object.
Results from nodes are rbinded and the same call is evalated on combined results. That means the column names cannot be renamed or simplified to vector in '...' call. Use '[[.big.data.table' for deeper flexibility.
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